Beginner Challenges
Real-world scenarios at the beginner level. Earn verified credentials as you practice the work your degree prepares you for.
- CodeBeginnerNew
Diagnose and Fix a Deadlock in a Multi-Threaded Payments Service
Receive the service source (Java 21 + Spring Boot, around 30,000 lines), 4 thread dumps from production deadlocks, and a load harness that reproduces the bug roughly 1 in 50 run…
- Deadlock Analysis
- Locks And Monitors
- Java
Concurrent and Parallel Programming - AnalysisBeginnerNew
Revenue Recognition for a SaaS Scale-Up
Your task is to produce a revenue recognition memo for the CloudSync contract. You must apply the ASC 606 five-step model, identify distinct performance obligations (software li…
- Revenue Recognition
- ASC 606
- Contract Analysis
Open coursework - CodeBeginnerNew
Apply SOLID Principles to a Notifications Subsystem
Read Notifier and the last 6 months of incidents touching it. Write a 4-page design document mapping each of the 5 SOLID principles to a specific change in the subsystem (Single…
- Solid Principles
- Design Patterns
- Refactoring
Software Design and Design Patterns - DesignBeginnerNew
Design a Retrieval Pipeline for a Climate-Research Open Archive
You receive a metadata sample (5,000 documents) plus 50 example researcher queries (mixed-language). Design a retrieval pipeline architecture that: (1) extracts and normalizes s…
- Retrieval Architecture
- Hybrid Search
- Multilingual Search
Open coursework Develop in-demand professional skills.
Each challenge names the skills it strengthens. Over time, your profile fills with the competences a hiring manager would actually look for.
Why Ewance
- CodeBeginnerNew
End-to-End Lane Following on a Donkeycar Platform
Use the public Donkeycar Tub dataset (or collect about 30 minutes of driving on the simulator). Train a CNN-policy baseline (the Donkeycar default architecture is fine) that pre…
- End To End Learning
- Imitation Learning
- Pytorch
Open coursework - PresentationBeginnerNew
Stakeholder ROI Presentation for Implementing a CRM System
Compare three CRM solutions (Salesforce, HubSpot, Pipedrive) for the firm's specific needs. For each: feature comparison, pricing for 15 users, implementation timeline, and trai…
- Business Administration
- Digital Business Models
- Statistics
Open coursework - AnalysisBeginnerNew
Diagnose Churn Drivers for a B2B SaaS Workflow Tool
You receive three CSV exports: 18 months of weekly product-usage events for about 1,800 accounts, the full support-ticket history, and account firmographics (industry, size, pla…
- Exploratory Data Analysis
- Data Wrangling
- Feature Engineering
Applied Data Analysis and Practical Data Science - AnalysisBeginnerNew
Value a Johannesburg Direct-to-Consumer Skincare Startup
Using the company data room, the comparable funding-rounds dataset, and the founder's investment memo provided to you, value the company with at least two independent methods: t…
- Startup Valuation
- Term Sheet Analysis
- Financial Modeling
Open coursework - Browse challenges
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Pricing Strategist
Set the price that captures value without leaving sales on the table. Demand modelling, willingness-to-pay research, and the disciplined experimentation that turns pricing into a competitive advantage.
- StrategyBeginnerNew
Aligning Product and Sales for Enterprise Growth
Your task is to analyze the current misalignment between product and sales teams, identify key friction points, and propose a structured framework (e.g., RACI matrix, OKRs, or a…
- Cross Functional Alignment
- OKR Setting
- Incentive Design
Open coursework - CodeBeginnerNew
Markov Random Field for Image Segmentation in Crop Monitoring
You receive 60 Sentinel-2 image tiles (10-meter resolution) over 12 vineyards, each tile with per-pixel disease labels from agronomist field walks. Take the consultancy's existi…
- Markov Random Fields
- Graph Cuts
- Image Segmentation
Open coursework - AnalysisBeginnerNew
Index a Slow 90-Million-Row FinTech Reporting Database
Your analysis task is to read the engineering ticket and the six reporting queries in the case file (M1), study the transactions table definition, column statistics, and write w…
- Indexing
- Query Optimization
- Explain Analyze
Open coursework - AnalysisBeginnerNew
Transfer Pricing for a Lagos D2C Cosmetics Startup
You are a junior tax consultant hired by GlowLagos. Your task is to analyze the current intercompany transactions (raw material purchases, manufacturing fees, and royalty paymen…
- Transfer Pricing
- Benchmarking
- Functional Analysis
Open coursework Get recognized by recruiters and employers.
Credentials are blockchain-anchored via LearnCoin — tamper-evident, portable, link-shareable on LinkedIn and beyond.
Why Ewance
- CodeBeginnerNew
Stack Five Models for a Kaggle-Style Forecasting Bake-Off
You receive a pseudonymized dataset of 24 months of daily shipment volumes across about 200 origin-destination lanes plus weather and holiday features. Train 5 base models, use …
- Ensemble Methods
- Time Series Forecasting
- Feature Engineering
Advanced Machine Learning - CodeBeginnerNew
Segment Solar Panels in Aerial Imagery for an Energy Audit Startup
You receive 600 labelled 1024x1024 orthophoto tiles (panel masks) and 1,000 unlabeled tiles. Train a segmentation model (U-Net or DeepLabV3+ baseline), validate at 0.85 IoU on a…
- Semantic Segmentation
- U Net
- Aerial Imagery
Open coursework - StrategyBeginnerNew
Set Up Trunk-Based Development on a 3-Branch Workflow
Audit the current branch + merge data over 8 weeks (frequency, conflict count, time-to-green). Pick one product team for a 4-week pilot: introduce a feature-flag system (Unleash…
- Version Control
- Trunk Based Development
- Feature Flags
Open coursework - AnalysisBeginnerNew
Transfer Pricing for a Mumbai D2C Cosmetics Startup
Your task is to recommend a transfer pricing method (e.g., market-based, cost-plus, or negotiated) for the sale of products from France to Spain. Provide a detailed analysis of …
- Transfer Pricing
- Tax Analysis
- Managerial Accounting
Open coursework - StrategyBeginnerNew
Reposition a 50-Year-Old German Gummy Maker for Gen Z
Using the four provided materials, develop a repositioning strategy and present it as a decision-ready package. Read the company case file to understand the heritage, portfolio,…
- Strategic Marketing
- Segmentation Targeting Positioning
- Marketing Mix
Open coursework - DesignBeginnerNew
Designing a Digital Platform for Local Artisans in Nairobi
Your task is to design a digital platform business model for CraftConnect. You must define the value proposition for artisans and buyers, propose a revenue model (e.g., commissi…
- Platform Business Models
- Value Proposition Design
- User Experience Design
Digital Business Models - DesignBeginnerNew
Redesign Weekly Production Scheduling for a Munich Craft Brewery
Using the historical demand dataset, the production-constraints specification, and the current-operations snapshot provided, design a single weekly production schedule for the t…
- Process Analysis
- Capacity Planning
- Scheduling
Open coursework - StrategyBeginnerNew
Pitch a Regulatory Sandbox Application for an Edtech AI Product
Read the EU AI Regulation's regulatory-sandbox provisions. Pick a member-state sandbox program (Spain, Norway-as-EEA, or a German-state pilot are publicly documented options) an…
- Regulatory Analysis
- Ai Governance
- Product Strategy
Open coursework - StrategyBeginnerNew
Strategy Brief on Layer-2 Choice for a Web3 Gaming Studio
Survey the three L2 categories with 2026-current numbers: per-transaction cost at expected game throughput (around 50 TPS sustained, 500 TPS event spikes), finality latency (mat…
- Layer 2 Protocols
- Blockchain Protocols
- Research
Open coursework - DesignBeginnerNew
Lean Transformation for a Boston D2C Cosmetics Startup
Your task is to develop a comprehensive lean transformation plan for GlowUp Naturals' new in-house production facility. You must propose a cellular layout, implement kanban for …
- Lean Manufacturing
- Production Layout Design
- Kanban
Open coursework - StrategyBeginnerNew
Balanced Scorecard for CloudMetrics' Shift to Enterprise Sales
Using the company snapshot and the current metrics extract provided in the materials, design a balanced scorecard with four perspectives: financial, customer, internal processes…
- Balanced Scorecard
- KPI Design
- Strategic Alignment
Open coursework - StrategyBeginnerNew
Design an Open Innovation Pilot for GlowUp Naturals
Acting as a junior innovation consultant hired by GlowUp Naturals, design a six-month open innovation pilot and present it to the chief executive. Ground every recommendation in…
- Open Innovation
- Partner Scouting
- Ip Management
Open coursework
How it works
From brief to credential, in six steps.
Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
Earn a verified credential.
Step 06
Add it to LinkedIn with one click.
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